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A. M. -LANNBR- STVE.

Patented Sept. 8, 1896.

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2 Sheets-Sheet 2. A. M. LANNBR.

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No. 567,398. Patented Sept. 8, 1896.

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on or about on line x of Fig. 1. Fig. 4a is a UNITED STATES PATENTOFFICE.

AXEL MAURITZ LANNER, OF STOCKHOLM,- SWEDEN.

STOVE.

SPECIFICATION forming part of Letters Patent No. 567,398, datedSeptember 8, 1896.

Application i1ed December 26, 1895. Serial No. 573,360. (No model.)Patented in England June y16, 1392. No. 11,314, and

November 18, 189e, N0."2z`,1so; in Norway Auguseze, 189s, No. 3,525, andoctober 13, 189s, No. 3,723,- in Austrier-Hungary December 12, 1393, No.90,349; in Denmark February 8, 1894, No. 52/94; in France March S, 1894,No. 236,712; in Belgium March 31, 1394, No. 108,972, and in SwedenDecember 13, 1894,1To. 5,631.

.To all whom it may con/cern.-

Be it known that LAxELllIAURITz LANNEm asubject of the King of Swedenand Norway, residing at Stockholm, Sweden, have invented certain new anduseful'lmprovements in Stoves, (for which Letters Patent have beenobtainedin the following countries, to wit: in England, No. 11,314,dated-J une 16, 1392, and No. 22,130, dated N ovember13, 1393; inNorway, No. 3,525, dated August 23, 1393, and No. 3,723, dated October13, 1393; lin Denmark, No. 52/ 94, dated February 3,` 1394 in France,No. 236,712, dated March 3, 1394 5 in Belgium, No. 103,972, dated March31, 1394; in Austria-Hungary, No. 90,349, dated December 12, 1393, andin Sweden, No. 5,631, dated December 13, 1394;) and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make anduse the same, ref erence being hadto theaccompanying drawings, and to letters and iigures of reference markedthereon, which form apart of this specification'.

My invention has relation to magazinestoves, and it has for its objectstructural features and combinations of parts whereby a horizontalcombustion is insured and a sub-n stantially complete utilization of theproducts of combustion attained.

zine-stove embodying my invention; Fig. 2,

a-like view of the upper end thereof 5 Fig. 3, an under side View of thetop ring and cover of the stove, and Fig. 4, a cross-sectional viewsection on about line yy of said Fig. 1, and Fig.. adetail view.

In the drawings, o, indicates the bottom plate that divides thecombustion-chamber 5o from the ash-pit A, and upon this plate is seateda slab of refractory material Z2, whose upper face is inclined or slopestoward or to the grate-opening a. Between this slab of refractorymaterial and the sheet-metal outer 5 5 casinga ofthe stove is placed ablock of refractory material c, which may be made of one or more pieces,according to the diameter andheight, e., the capacity of the stove. Inthe drawingsI have shown said block as made 6o in two sections 1 and 2.As shown, this block of refractory material c extends upwardly along theback of the stove some distance above the outlet-port 3 in casing nleading to the smoke-pipe 3 and has a groove in its 65 upper face inwhich is seated a metalplate e', that extends upwardly nearly to theupper edge of the said casing n. y

The block c has in its `front face a concave recess 4, extending fromits upper edge to the 7o `block l), a like recess 5 being formed in itsrear face, extending likewise from its upper edge t0 the lower edgeofthe opening 3 in the casing n leading to the smoke-pipe 3a, the recess4 extending practically across the front 75 face, while therecess 5 ismuch narrower and forms with the space between the plate z' and casingna diving flue. On the bottom plate a areY also seated two segmentalblocks d d, of refractory material, one on each side of the 8ocombustion-chamber 6, (see Fig. 42,) and o n said blocks is seated aslab S, of like material, from which depends an open-ended cylinder c,of varying length, as shown at e and e2, Fig..

1, the shorter portion e serving to .protect 85 the front portion of theouter casing n ofthe stovejvllere the door-framing f is secured, whilethe longer rear portion c2 constitutes theg; 'i v iireback and formswith the concave recess-iv 4 an uptake or iiue '7L for the productsOfcom-i90 bustion, said cylinder c having an enlargement 7, whereby thearea of the uptake'ais somewhat contracted. Thepdownward projection orfireback e2 of the cylinder e, which constitutes the lowerportion of themagazine, 95 as shown, extends Vclose to the inclined face of block band terminates practically -in the plane of the air-intakes 3 3 in thedoor or doori, 'ndern framing f, thereby insuring a horizontal draft,that is to say, preventing the combustion of the fuel above the line ofdraft or in the lower part e of the magazine, asis generally the case,and resulting in a waste of fuel. The cylinder e is further providedwith vertical channels fm in its front wall that open' into circularchannels m' in the upper face of slab S, which latter communicate withthe uptake 7a, as shown in Fig. 4, whereby air entering at the door orbelow the same is caused to flow through the said channels m m. Such airbeing heated in its passage and mingling with the productsof combustionin the 'uptake 7,promote's the combustion of`the-gases,hence linsuresthe Yalmost complete utilization of the products of combustion.

Upon the cylinder e is seated a cylindro'-orsaidringteingiurvedeutwardiy, ass-hewn iny Figs. 1 and f2, Yand p `isa lcover "provided with r'a 'circular l-g'gioo've formed by two*circular Ibei) on its underside. The ring ofhas enl gedportin's o'provided with 'bolt-h cles, the eifrculfarribs 9'in the Acover p beinginterrupted at the point where this fullness Toc'- cnrs vin the ring 0,and, as :shown mcreclearly in Fig. 5, the sheet-metalfcasingn has at itsupper yend 'an 'outwardly'projecti'ng *circular flange n?, thatseatsupon the upper edge of the aforesaid ringo, a packing e', preferably offasbestos., being 'interposed between said partsand 4vthe `bottoni ofthe -coyer-groove, as more clearly shown 'in Figf, the cover being thus`secured `gas-tightto the 'ring 'by vmeans of ibltsand Inuts-q, whilesaid ring affords a 'mcansfrliftingthefstove when lthis vbecomesnecessaryorides'irable for any purpose.

The cover 1in "is further fprovided with a'depending cylindrical bearinglBi'or theu-p'pe'r end l ofthe magazine, l'which "bearing is `surrounded-by fa' circular-'chamber `B,-"and 'said'chajm-ber and bear'ilgae closed'by-'a coyer'C. 'Instead'of seating vt]'lering 0 directlycn the beadw, a

cepti'onof Ethe ring-0, las-shown `in `Fig. v1.

1in order that `'ready *access fmay -be had to tlief sinovkelpipe anddownta'ke 5 nfor purposes of'c'lean-ing the same, Yl "provide the doorD, l g an pening leading* -to lsaid downtake "smoke-pipe. -Asjshowm ythecn'nectin of'thesin'okeipipeY with vthe stovecasing fissu'ch vthat Vapocketl d is formed vvfor thecclleetinifsonuproducts of combustion, Iwhile ther-door D Fis hingfed' to the underside ef the enlarged'portiolroflthe inletto/the Said solid products of combustion that haveaccumulated in the pocket fd will drop out or can readily be removed.

The advantages. derived from the construction of the magazine-stovedescribed will readily be understood by those conversant with thisbranch 'of the art, -and will therefore not require any furtherelucidation. Having thus described my invention, what I claim as newtherein, and desire to secure by Letters Patent, is

l. A magazinehstove comprising an outer shell or casing,facombustion-chamber and a grate, said vcasing provided with an outlet forthe products of combustion at a vpoint between said grate and the upper'closed end of the stove, a magazine constructed and arranged relativelyto the combustion-chamber, to close the upper en'd'thereof outside "ofy'the magazine, in combination with 'a "freback `eX- tending fro'm themagazine into Ithe `combustion-chamber nearly to its grate andx'adividing-wallrising'frem `grate between the said Aiirebacl and the cutershell nearly to the top of lthe closed stove andforming between -saidparts 'up *and downtak'es 'the latter 'leading to th'ejaforesad lrtl'etfor the prod-nets of combustion,*substantially.and

for the 'purpose set'fOrth.

A 'magazinesteve jcemprsng an-'outer shell orcasi-nggjacombustionuchamber and a grate, said casing provided withan/outlet for the -productsof lc'ombustion"ata point be'- tween saidgrate and the `upper-end'of 'the stove, a magazine Aconstructed 'andarranged relatively to the combustion-"chamber toclos'e the upper `'endthereof voutside of 'the :magazine, 'and 'air-'passages leading fromthejconr bustion-'chamber l'through fthe walls 'of 4 themagazine-intotheouter'sh'ell; `in combination with a -rebackprojectingfrom the magazine into the vcoi'nbustion-chamber nearly to its grate,and a dividing-wall rising yfrom said grate between the "said r'irebackand outer shell ne'arly to the upp'er closeden'dxof the stove andforming with `said' iireba'clt 'and shell 'up and 'down 'takes leadingvfrom `the combustion-chamber to the aforesaid outlet in the shell, forthe purposeiset forth.

3. In a magazinestove "the "combination "with-the outer :casing itssmoke4pip'e`3,`the

combustion-chamber, and a magazine provided with -a iireba'ck projecting'into the combustionchamber.; of lthe 4inclined hearth Y), adividing-wall "rising from said hearth between the firebaekand outercasing nearly to the closed ltop-of thestove,'said dividingwall havingla 'portion-of vits lf ro'nt face vconcavedand having 'a pr'tion'oflitsrea'rfa'ce also fco'ncaved from Vthe *smoke outlet upwardl-y,'whereby an vup y'and fdown 'take 'is formed 'leading from thecombustion-chamberto lthe smoke-pipe, for the 'purpose 'set frIth. 'A

4. -In'amagazine-stove thelower'magazine portion S, e, e e2providedwithairpassages IDO IIO

IIS

m and m arranged as described, and the uptake 7 a into which saidpassages open whereby hot air from the combustion-chamber is supplied tosaid ue, substantially as and for the purpose set fort 5. In amagazine-stove the combination with the outer casingprovided near itsupper end with a peripheral seat n' and a ring, as

\ o, seated thereon and provided with enlarged portions having verticalbolt-holes formed therein; of a cover provided with a circular groovefor the reception of the upper end of the ring, and bolts and nutsbolting the cover to the ring, for the purpose set forth.

6. In a magazine-stove, the combination with the outer shell, thesegmental blocks d d, the inclined hearth b and the vertical Wall chaving concavities 4 and 5, of a magazine constructed with dependingfireback e2 arranged relatively to the inclined hearth b and wall c asdescribed, the lower part of said magazine and the parts b c and d beingconstructed of refractory clay, substantially as and for the purpose setforth. t

7. In a magazine-stove, the combination with the outer shell, thesegmental blocks CZ d, the inclined hearth b and the vertical wall cconstructed and arranged as set forth,

of a magazine the lower portion S e of which I

